CN107046435A

CN107046435A - Wireless communications method and radio communication device

Info

Publication number: CN107046435A
Application number: CN201610081338.3A
Authority: CN
Inventors: 赵培尧; 王昭诚; 陈晋辉
Original assignee: Sony Corp
Current assignee: Sony Corp
Priority date: 2016-02-05
Filing date: 2016-02-05
Publication date: 2017-08-15
Anticipated expiration: 2036-02-05
Also published as: US10637688B2; US11799693B2; JP2019510394A; US20240064043A1; MX2018009482A; EP3413484A4; EP3413484A1; WO2017133434A1; RU2018131643A; US20200220749A1; US20190044756A1; US11323293B2; US20210288841A1; CN107046435B; RU2018131643A3; KR20180109944A; US11057245B2; US20220231885A1

Abstract

The invention discloses a kind of wireless communications method and radio communication device.A kind of electronic equipment for the first communication device being used in wireless communication system, including：Memory, is configured as simulation code book of the storage for the first communication device, and the simulation code book includes multigroup first configuration parameter of one group of phase shifter for the first communication device；And process circuit, it is configured as：Signal transmission based on multigroup first configuration parameter and from secondary communication device, channel estimation is carried out to the first channel of the secondary communication device to the first communication device respectively, the submodule for meeting the first configuration parameter group corresponding to the first predetermined condition person in selection channel estimation results to generate reduction intends code book, the signal for intending first communication device described in codebook configuration to the secondary communication device based on the submodule is transmitted, for carrying out channel estimation to the second channel of the first communication device to the secondary communication device.

Description

Wireless communications method and radio communication device

Technical field

It is more particularly to a kind of to use the present invention relates to a kind of wireless communications method and radio communication device In the wireless communications method and radio communication device of FDD millimetre-wave attenuator.

Background technology

In recent years, millimeter wave (Millimeter Wave) technology and extensive multiple-input and multiple-output (Massive Multi-Input Multi-Output, MIMO) technology is considered as following 5G A part for key technology, causes the extensive concern of academia and industrial quarters.Millimeter wave frequency band With a large amount of usable spectrum resources, the growing service traffics demand of mobile communication disclosure satisfy that. Further, since the wavelength of millimeter wave is shorter, according to antenna theory, the antenna chi of millimeter-wave systems It is very little also smaller, enabling hundreds of even thousands of antennas are placed in small range space, are more had Beneficial to application of the extensive antenna technology in reality system.In addition, extensive antenna is provided Beamforming technique can effectively make up millimeter wave channel path and decline excessive shortcoming, be millimeter Wave technology is applied to mobile communication there is provided possible.

The content of the invention

The inventors found that, it is necessary to be directed to each in above-mentioned existing millimetre-wave attenuator technology Individual user determines corresponding wave beam forming parameter to be transmitted.But, in user equipment and In the case that base station is equipped with many antennas, with the increase of number of antennas and number of users, The expense trained for wave beam forming is increasing.In addition, in FDD communication systems, it is necessary to Wave beam forming training is carried out respectively for up channel and down channel, and this training expense is Twice of tdd communication system.Do not have feasible scheme at present and can solve the problem that these problems.

Therefore, the application regarding to the issue above at least one problem propose it is a kind of new Technical scheme.

It is an object of the present invention to provide a kind of technical scheme for radio communication.

There is provided a kind of the first communication dress being used in wireless communication system according to the first aspect of the invention The electronic equipment put, including：Memory, is configured as storage for the first communication device Code book is simulated, the simulation code book includes many of one group of phase shifter for the first communication device The first configuration parameter of group；And process circuit, it is configured as：Based on multigroup first configuration ginseng Number and the signal transmission from secondary communication device, respectively to the secondary communication device described in First channel of first communication device carries out meeting first in channel estimation, selection channel estimation results The first configuration parameter group corresponding to predetermined condition person intends code book with the submodule for generating reduction, based on institute State submodule and intend first communication device described in codebook configuration to the signal transmission of the secondary communication device, Estimate for carrying out channel to the second channel of the first communication device to the secondary communication device Meter.

It is used for FDD (FDD) millimeter wave there is provided one kind according to the second aspect of the invention The wave beam forming training method of communication, including:User equipment is sent according to user terminal code book to base station Row training sequence；Base station receives up training sequence and calculates the weight vector in user terminal code book With the channel quality under the multiple combinations of the weight vector in base station end code book；It is according to channel quality Each weight vector in base station end code book selects a corresponding channel quality, so as to form first Channel quality set；It is each weight vector selection one in user terminal code book according to channel quality Corresponding channel quality, so as to form second channel quality set；From the first channel quality set The channel quality of the first predetermined number is selected, and according to corresponding with the channel quality of the first predetermined number Weight vector generation reduction base station end code book；Selection second is pre- from second channel quality set Fixed number purpose channel quality, and according to weight vector corresponding with the channel quality of the second predetermined number Generate the user equipment end code book of reduction；And the base station end code book using reduction and the user of reduction Equipment end code book carries out down beam shaping training.

An advantage of the present invention is that the expense of wave beam forming training can be reduced.

In addition, according to some embodiments of the present application, the average achievable rate of user can also be increased, So as to improve the performance of FDD system.

According to some embodiments of the present application, wave beam forming training expense can also kept relatively low While, further reduce signaling consumption.

By referring to the drawings to the detailed description of exemplary embodiment of the invention, the present invention Further feature and its advantage will be made apparent from.

Brief description of the drawings

The accompanying drawing for constituting a part for specification describes embodiments of the invention, and together with saying Bright book is used for the principle for explaining the present invention together.

Referring to the drawings, according to following detailed description, the present invention can be more clearly understood from, Wherein：

Fig. 1 is to show a kind of diagram of the structure of the base station of prior art.

Fig. 2 is to show a kind of diagram for the user terminal for being configured with single antenna.

Fig. 3 is to show a kind of diagram for the user terminal for being configured with many antennas.

Fig. 4 a and Fig. 4 b respectively illustrate the base station end in single user system and the configuration of user terminal Diagram.

Fig. 5 a and Fig. 5 b respectively illustrates base station end and user terminal under mixing precoding framework The diagram of configuration.

Fig. 6 a and Fig. 6 b respectively illustrate full connection phase-shift network and son connects showing for phase-shift network It is intended to.

Fig. 7 a show it is according to an embodiment of the invention be used for wireless communication system in one The schematic diagram of the electronic equipment of individual communicator.

Fig. 7 b show according to an embodiment of the invention for another in wireless communication system The schematic diagram of the electronic equipment of one communicator.

Fig. 8 is shown and set in a base station using Fig. 7 electronics according to one embodiment of present invention The standby flow chart for carrying out wave beam forming training.

Fig. 9 shows that the exhaustive search mode of use according to an embodiment of the invention is carried out The flow chart of uplink beam figuration training.

Figure 10 shows the single feedback search side of use according to an embodiment of the invention Formula carries out the flow chart of uplink beam figuration training.

Figure 11 shows being reduced to simulation code book according to one embodiment of the application The flow chart of method.

Figure 12 shows the flow chart that down beam shaping training is carried out using exhaustive search scheme.

Figure 13 shows the stream that down beam shaping training is carried out using single feedback search scheme Cheng Tu.

Figure 14 shows the example reduced under exhaustive search algorithm to simulation code book.

Figure 15 shows one reduced under single feedback search algorithm to simulation code book Example.

Figure 16 a and Figure 16 b are respectively illustrated is used for base station according to the application another embodiment With the schematic diagram of the electronic devices structure of user equipment.

Figure 17 shows that intending code book to the submodule of base station according to one embodiment of the application is carried out The figure of correction.

Figure 18 is shown intends code book according to one embodiment of the application to the submodule of user equipment The figure being corrected.

Figure 19 shows that intending code book to the submodule of base station according to one embodiment of the application is carried out The figure of correction.

Figure 20 is shown intends code book according to one embodiment of the application to the submodule of user equipment The figure being corrected.

Figure 21 is shown according to the average achievable rate of the user of one embodiment of the application and letter Make an uproar than curve map.

Figure 22 is shown according to the average achievable rate of the user of one embodiment of the application and letter Make an uproar than curve map.

Figure 23 shows a kind of example of the hardware configuration of the electronic equipment according to the present invention.

Embodiment

The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should be noted that Arrive：Unless specifically stated otherwise, the part and the phase of step otherwise illustrated in these embodiments Arrangement, numerical expression and numerical value are not limited the scope of the invention.

Simultaneously, it should be appreciated that for the ease of description, the chi of the various pieces shown in accompanying drawing Very little is not to be drawn according to actual proportionate relationship.

The description only actually at least one exemplary embodiment is illustrative below, is determined Not as to the present invention and its application or any limitation used.

It may not make in detail for technology, method and apparatus known to person of ordinary skill in the relevant It is thin to discuss, but in the appropriate case, the technology, method and apparatus, which should be considered as authorizing, to be said A part for bright book.

In shown here and discussion all examples, any occurrence should be construed as merely Exemplary, not as limitation.Therefore, the other examples of exemplary embodiment can have There are different values.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, Once being defined in a certain Xiang Yi accompanying drawing, then it need not be carried out in subsequent accompanying drawing It is discussed further.

It is main to use digital precode framework in current wireless communication system, wherein every day Line connects a radio frequency link, and the amplitude that signal is sent on each radio frequency link is adjustable, with Reduce the interference of the multichannel data signal carried on identical transfer resource to each other.For example, Fig. 1 shows a kind of structure of the base station of prior art.As illustrated, in digital precode frame Under structure, base station end is equipped with M roots antenna (M is integer and M >=1), every antenna arrangement There is corresponding radio frequency link.Digital precode device obtains K circuit-switched data streams under the control of the controller (K is integer and K >=1), digital precode is carried out to this K circuit-switched datas stream (for example, making K circuit-switched datas flow through the digital precode matrix B that size is M × K).Data warp after coding One or more users are sent to by radio frequency link and antenna.

Correspondingly, user terminal can have various configurations form.

Fig. 2 shows a kind of user terminal for being configured with single antenna.As shown in Fig. 2 user terminal It is provided with single antenna and corresponding single radio frequency link.Because the user terminal only has an antenna, Therefore individual traffic can only be received.That is, the K sent from M antenna of base station end In circuit-switched data stream, only data flow can be received by user terminal all the way.

Fig. 3 shows a kind of user terminal for being configured with many antennas.As shown in figure 3, the user End is configured with N roots antenna, and (N is integer and N>1).Every antenna passes through corresponding rf chain The data received are transferred to digital precode device by road.Control of the digital precode device in controller Under system, using digital precode matrix W that such as size is Ku × N (Ku be integer and Ku≤digital precode 1) is carried out to the data received, so as to obtain single channel (during Ku=1) Or multichannel data (Ku>When 1).

For the digital precode matrix used in digital precode device, generally have based on code book (codebook based) and it is not based on two kinds of design sides of code book (non-codebook based) Formula.In the design based on code book, digital precode matrix must be from code set in advance Chosen in this.And in the design of code book is not based on, then without such constraint.Base station End and user terminal can be according to channel condition information (Channel State Information, CSI) Design pre-coding matrix.

In millimeter-wave communication system, because the implementation complexity and cost of radio frequency link are higher, Therefore multiple phase shifters and antenna are generally connected using every radio frequency link and penetrated using as little as one Wave beam of the frequency link formation with directive property, so as to realize analog beam figuration scheme.Analog wave The main function of beam figuration is to improve user's received signal to noise ratio.

Millimeter-wave communication system has multiple-working mode, such as ad hoc mode, single user mode Multi-user mode etc..Ad hoc mode can be used for base station (BS) between return, single user mode and Multi-user mode can be used for communicating between base station and one or more user equipmenies (UE).Realizing On framework, analog beam figuration can be included, connection mixing precoding, sublink mixing are pre- entirely Coding etc..But no matter which kind of framework is used, limited by device constraints, base station and user equipment Weight vector can only be selected from pre-defined simulation code book.Wave beam forming training just refers to The process of optimal transmission/reception weight vector is selected from simulation code book.

Fig. 4 a and Fig. 4 b respectively illustrate the base station end in single user system and the configuration of user terminal. As shown in figures 4 a and 4b, in user terminal and base station end, each radio frequency link is respectively connected with One group of phase shifter, each phase shifter is connected respectively to each self-corresponding antenna again.One group of phase shifter Value (such as phase value) constitute weight vector.Herein, we swear the weight of base station end Amount is expressed as f, and the weight vector of user terminal is expressed as w.Because phase shifter only adjusts signal Phase is 1 without the amplitude for changing each element in amplitude, therefore weight vector.This In the millimeter-wave communication system of structure, due to the limited amount of radio frequency link, base station end and user End all can not direct estimation channel condition information.So common analog beam figuration scheme is used Method based on code book.Code book is the set of one group of weight vector.If base station end code book is Fc, Codebook size is P (comprising P weight vector), and user terminal code book is Wc, codebook size For Q (including Q weight vector), then the weight vector of base station end must be from base station end code book Chosen in Fc, the weight vector of user terminal must be chosen from user terminal code book Wc.

When base station end and user terminal carry out millimetre-wave attenuator, specific which using in code book Weight vector important affair first passes through wave beam training to determine.Wave beam training can be using maximization noise Compare criterion.So that downlink wave beam is trained as an example, formula (1) can be expressed as：

{w_opt,f_opt}=argmax | | w^THf | | wherein w ∈ W_c,f∈F_c (1)

In above-mentioned formula (1), H represents the channel between base station end and user terminal.

Wave beam training algorithm can be using modes such as exhaustive search, single feedback searches.Following Description is so that downlink wave beam is trained as an example.

1. exhaustive search.Exhaustive search algorithm is to the weight vector of base station end and the weight of user terminal The all possible combination of vector is detected, and user terminal is measured under each pair weight vector Channel quality, therefrom select optimal one group, and optimal base station end weight vector is indexed Feed back to base station.The performance that exhaustive search mechanism can be optimal, but since it is desired that detection power All combinations of weight vector, so complexity is high.

In order to reduce the complexity of wave beam training algorithm, the weight vector of user terminal can be only selected Detected with the part in whole combinations of the weight vector of base station end.For example, it may be The combination of a weight vector and whole weight vectors in user terminal code book in base station end code book, Can also be that one of weight vector in user terminal code book is sweared with whole weights in base station end code book The combination of amount.For example, in one embodiment, can be sweared according to the weight in base station end code book One of amount and the channel quality obtained by the combination of whole weight vectors in user terminal code book, choosing Selecting in the weight vector in user terminal code book will be carried out with whole weight vectors in base station end code book The weight vector of combination.One specific example is exactly single feedback search.

2. single feedback search.Wave beam forming training is split as two processes by single feedback search. Still following behavior example.First, base station is sent according to each weight vector in base station end code book Signal (such as pilot signal), user terminal is using omni-beam (for example, user terminal is predetermined One weight vector is such as received merely with an antenna in aerial array) receive and estimate Channel quality corresponding with each weight vector in base station end code book, user terminal therefrom selects letter The weight vector of road optimal quality is simultaneously indexed and feeds back to base station.Then, base station is fixed and used The weight vector of user terminal selection sends signal, and user terminal then selects channel quality most from code book High weight vector, (user terminal code is calculated as the weight vector to be communicated with base station Each weight vector and the channel obtained by the combination of the weight vector of the fixation of the base station end in this Quality, and select combine corresponding with highest channel quality).Compared to exhaustive search mechanism, The complexity of single feedback mechanism is substantially reduced, but also results in certain performance loss simultaneously.

It is illustrated above with the descending example that is transmitted as.The process performed during uplink Substantially similar, the main distinction is that user terminal sends signal, and base station end receives signal.In addition, Channel quality can be obtained by channel estimation.By channel estimation, channel side can be obtained To and channel quality.In channel estimation results, CQI (Channel Quality can be included Indicator) and corresponding parameter group identification information (optimal weights vector index), also may be used With the identification information including optimal multiple CQI and the corresponding parameter groups of each CQI.

Under multi-user scene, Millimeter-wave Wireless Communication System can also be using mixing precoding frame Structure.Fig. 5 a and Fig. 5 b respectively illustrates base station end and user terminal under mixing precoding framework Configuration.

As shown in Figure 5 a, using mixing precoding framework base station end have digital precode device and Analog phase-shift network.Under the control of the controller, digital precode device obtains K circuit-switched datas stream and made For input, digital precode device carries out digital precode to this K circuit-switched data, so as to eliminate difference Interference between data flow.Then, K radio frequency link is to passing through digital precode device precoding Data flow carry out up-conversion, amplification, filtering etc. and handle, so as to become radiofrequency signal.Generally, In k radio frequency link, each radio frequency link corresponds to a user terminal.

K radio frequency link is connected to analog phase-shift network.Each in phase-shift network phase shifter takes Value constitutes analog beam figuration matrix F.In matrix F, kth row represent k-th of radio frequency The value of one group of phase shifter of link connection, is expressed as weight vector f_k, weight vector f_kMust be from Chosen in the code book fc of base station end.

For phase-shift network, there can be a variety of implementations.Fig. 6 a and Fig. 6 b distinguish Show the schematic diagram of full connection phase-shift network and son connection phase-shift network.

As shown in Figure 6 a, in connection phase-shift network entirely, each radio frequency link is connected to one group of M Individual phase shifter, so as to have K group phase shifters, the total number of phase shifter in connection phase-shift network entirely For K × M.The signal (K signal) of correspondence phase shifter output passes through in every group of phase shifter Adder is provided to corresponding antenna element after being added.

As shown in Figure 6 b, in sub- connection phase-shift network, the output end connection of each radio frequency link To P phase shifter (P is integer and P >=1), each phase shifter is connected to an antenna element. That is, in the case of with K radio frequency link, number M=K × P of antenna element.

Fig. 5 b show the configuration of the user terminal using mixing precoding framework.As shown in Figure 5 b, Client is configured with N number of antenna, and the signal that each antenna is received is after corresponding phase shifter It is input to radio frequency link.The value of each phase shifter constitutes client weight vector w_k, can be with Client weight vector w is selected from client code book Wc_k.Signal of the radio frequency link to input It is filtered, amplifies, obtains digital received signals after down coversion.

In this example, client only one of which radio frequency link., can also according to actual conditions The design of multiple radio frequency links is used in client.

Under mixing precoding framework, wave beam training is just to determine base station end and the weight of user terminal The process of vector.Example is transmitted as with descending, publicity (2) can be expressed as by maximizing signal-to-noise ratio (SNR) Criterion：

{w_k,opt,f_k,opt}=argmax | | w^TH_kF | | wherein w ∈ W, f ∈ F (2)

Wherein { w_k,opt,f_k,optRepresent the optimal descending weight vector of k-th of user, H_kFor base station Down channel matrix between k-th of user.Wave beam training method can be searched using above-mentioned limit Rope or single feedback search mechanism, or other multi-user beam search mechanisms.

In a tdd system, up-downgoing channel has in reciprocity, i.e. up channel H^ul _k=H_k ^T, the transposition of T representing matrixs here.So, in a tdd system, up channel In it is optimal in the combination and down channel of optimal base station end weight vector with user terminal weight vector Base station end weight vector it is identical with the combination of user terminal weight vector.Only need in up channel Wave beam forming training is carried out with one of down channel.And in FDD system, due to above and below Row channel no longer has reciprocity, and people need to carry out respectively in up channel and down channel Wave beam forming is trained, so as to add one than the complexity that wave beam forming in TDD system is trained Times.

Applicant have observed that, although up channel and down channel do not have reciprocity in FDD system Property, but the channel model proposed according to WINNER, up channel and down channel is small The antenna angle of arrival of yardstick fading parameter, such as base station end and user terminal is identical.It is specific next Say, down channel matrix H^DLWith up channel matrix H^ULFollowing publicity can be expressed as And (4) (3)：

In above formula, N and M represent the antenna amount that user terminal and base station are equipped with respectively, N_clFor scattering object quantity, N_rayThe sub- footpath number included for each scattering object, α_i,lRepresent per strip The channel coefficients in footpath, e is the bottom of natural logrithm, and j is imaginary unit.a_UEAnd a_BSDistinguish User terminal and the antenna response vector of base station are represented, subscript UL and DL represent up letter respectively Road and down channel, θ and φ represent horizontal direction angle of arrival and vertical direction angle of arrival respectively. In addition, Ψ_i,lRepresent the random phase and independent and uniform distribution per strip footpath in [0,2 π].My god The form of line response vector is related to the type of antenna.For example, in linear antenna array Under (Uniform Linear Array, ULA), the antenna response vector of base station is：

In above formula (5) and (6), λ represents wavelength, subscript UL and DL difference Up channel and down channel are represented, d is antenna spacing.User terminal can similarly be obtained Antenna response vector, is not just being repeated herein.

Under uniform planar aerial array (Uniform Planar Array, UPA), base station Antenna response vector is：

In above formula (7) and (8), A represents horizontal direction antenna number, and B is vertical Directional aerial number, and meet M=A × B.Can similarly obtain the antenna response of user terminal to Amount.Because ULA aerial arrays can also be considered as B=1 special UPA aerial arrays, therefore Both antenna types are not made a distinction in the description of the present application, will be with UPA antennas Illustrated exemplified by the antenna response vector of array.

Based on the reciprocity of antenna angle of arrival in up channel in FDD system and down channel, sheet Application proposes a kind of wave beam forming training method and the equipment for realizing this method.Using it is up (under OK) the information that wave beam forming training is obtained in channel, help is carried out in descending (up) channel Wave beam forming training, with reach reduction wave beam forming train expense purpose.

Fig. 7 a show it is according to an embodiment of the invention be used for wireless communication system in one The schematic diagram of the electronic equipment of individual communicator.Here communicator can be base station, can also It is user equipment.It is described below so that communicator is base station as an example.

As shown in Figure 7a, the electronic equipment 700 includes channel quality estimation unit 701, subcode This generation unit 702, transmission configuration unit 703 and memory 704.

Memory 704 is used for the simulation code book for storing base station, and the simulation code book, which is included, is used for base station One group of phase shifter multigroup configuration parameter (i.e. multiple weight vectors).

Channel quality estimation unit 701 can based on the simulation code book stored in memory 704 with And the signal (such as pilot signal in other words reference signal, training signal) from user equipment, The channel quality of up channel is estimated.Wherein, the communication system example that the present invention is applied It is such as LTE system, the signal from user equipment is, for example, detection reference signal (Sounding Reference Signal, SRS), or the up ginseng specially newly defined for analog beam figuration Examine signal.

Sub-codebook generation unit 702 according to the estimated result of channel quality estimation unit 701, from Weight vector of the corresponding channel quality more than predetermined threshold is selected in the simulation code book of base station, Intend code book so as to generate submodule.Compared with the simulation code book of base station, submodule, which intends code book, only to wrap A part of weight vector in the code book containing simulation, so as to realize the reduction of simulation code book.

The signal that transmission configuration unit 703 is used to configure base station is sent so that base station and user set Down channel wave beam forming between standby trains the submodule based on base station to intend code book.That is, In the wave beam forming training of down channel, base station is based on submodule and intends code book transmission signal (for example Pilot signal reference signal, training signal in other words), the letter that user equipment is sent according to base station Number the signal quality of down channel is assessed, so that assistant base station selects optimal weight vector (i.e. The configuration parameter of phase shifter) carry out the data transfer of down channel.Wherein, the present invention is answered Communication system is, for example, LTE system, and the signal that base station is sent is, for example, channel condition information Reference signal (Channel State Information Reference Signal, CSI-RS), Or the downlink reference signal specially newly defined for analog beam figuration.It should be appreciated that above only It is to be described by taking LTE system as an example.But the technical scheme of the application is not limited to LTE System, in different communication systems, the signal that base station is sent can be other appropriate references Signal, as long as wave beam forming can be realized.

Fig. 7 b show according to an embodiment of the invention for another in wireless communication system The schematic diagram of the electronic equipment of one communicator.Another communicator is used for and Fig. 7 a Communicator communicated.For example, when Fig. 7 a electronic equipment 700 is located in base station, Fig. 7 b another electronic equipment 710 is user equipment.When Fig. 7 a electronic equipment 700 When in user equipment, Fig. 7 b another electronic equipment 710 is base station.Below with Fig. 7 b Electronic equipment be located at user equipment in exemplified by be described.

As shown in Figure 7b, the electronic equipment 710 includes memory 711, channel quality estimation list Member 712, submodule intend code book acquiring unit 713 and transmission configuration unit 714.Wherein, store Device 711 is stored with the simulation code book of user equipment, and the simulation code book is included for user equipment Multigroup configuration parameter (i.e. weight vector) of one group of phase shifter.

Signal of the transmission configuration unit 714 based on simulation codebook configuration from user equipment to base station (such as pilot signal) is transmitted, so as to channel matter of the base station according to the signal of change up channel Amount.For example, transmission configuration unit 714 makes the value of one group of phase shifter of user equipment be equal to mould Intend one group of configuration parameter (i.e. one weight vector) in code book, and transmission is led in this case Frequency signal is to base station.

Submodule, which intends code book acquiring unit 713, to be used to intend code book from the submodule that base station obtains user equipment. It is obtained from being reduced by the simulation code book to user equipment that the submodule, which intends code book,.Below The reduction process for simulating code book can be described in detail.

Channel quality estimation unit 712 can intend code book according to the submodule stored in memory 711 The channel quality of down channel is estimated with the signal (such as pilot signal) from base station.

It will be appreciated by those skilled in the art that above-mentioned electronic equipment and user equipment for base station Electronic equipment can include processor or process circuit, pass through processor or process circuit real Each existing functional unit.

As shown in figure 8, in step 801, antenna from user equipment to base station repeats user equipment Parameter.Here, antenna parameter be, for example, antenna type (such as linear antenna or flat plane antenna), The parameters such as the spacing of antenna.Using antenna parameter, the antenna that base station can calculate user equipment rings It vectorial should wait to calculate the simulation code book of reduction for user equipment.User equipment can be each All transmission antenna parameter before wave beam forming training, only can also be carried out in access network. In one example, user equipment is come using the RRC signaling in high-rise dedicated signaling such as LTE To the antenna parameter of base station repeats user equipment.

In step 802, base station is to user equipment broadcast upstream wave beam forming training parameter, for example： With end time (such as subframe sequence number), training sequence between at the beginning of the training of uplink beam figuration Transmission times of row etc..

In step 803, user equipment sends training sequence to base station, so as to carry out uplink beam Figuration is trained.In uplink beam figuration training process, it can be searched using limit described above The mode such as rope or single feedback search carries out uplink beam figuration training.In addition, in this step, Base station uses channel quality estimation unit 701, and channel quality is estimated based on training sequence.

As shown in figure 9, in step 901, user equipment is assigned based on the uplink beam from base station Shape training parameter sends uplink beam figuration training sequence.Here, the transmission times of training sequence The size of the simulation code book of base station and the simulation code book of user equipment can be depended on.For example, such as The simulation code book of fruit base station includes P weight vector (i.e. the size of the simulation code book of base station is P), The simulation code book of user equipment includes Q weight vector, and (i.e. the simulation code book of user equipment is big Small is Q), then uplink beam figuration training sequence needs number of times to be sent to be equal to P × Q.

In step 902, base station estimates equivalent channel according to the training sequence received, and counts The combination of optimal weight vector.That is, according to training sequence, base station can be calculated Go out：It is each in each weight vector simulated in code book of base station and the simulation code book of user equipment In whole combinations of individual weight vector, any combination can reach best channel Quality.In follow-up uplink communication, base station and user equipment are by using this pair of selected power Weight vector is communicated.

In step 903, base station notifies the result of calculating to user equipment.That is, base Which weight vector into the simulation code book of notification of user equipment user equipment of standing will be used for up The communication of channel.Generally, base station is the rope of the weight vector in the simulation code book user equipment Draw and inform to user equipment.In another embodiment, base station can also use base station The index for receiving weight vector is also notified to user equipment in the lump.

By above-mentioned steps 901-903, base station and user equipment in uplink communication have been obtained each From by the weight vector of use, so as to successfully carry out uplink communication.

, can also be using other modes except exhaustive search mode described above.For example, Can be only with the simulation code book of the weight vector in the simulation code book of user equipment and base station A part in whole combinations of weight vector.For example, in one embodiment, these combinations It can include：The simulation code book of a weight vector and user equipment in the simulation code book of base station In all weight vectors combination, and user equipment simulation code book in a weight arrow The combination of amount and all weight vectors in the simulation code book of base station.In a preferred embodiment In, one of weight vector in the simulation code book of base station is simulated in code book with user equipment Channel quality obtained by the combination of whole weight vectors, selects the simulation code book of the user equipment In weight vector in the weight to be combined with whole weight vectors in the simulation code book of base station Vector, here it is single feedback search mode which will be described.

As shown in Figure 10, in step 1001, the uplink beam that user equipment is sent according to base station Figuration training parameter and repeat send uplink beam figuration training sequence.In single feedback system, Because base station end uses omni-beam (Omni-directional beam) (i.e. predetermined weight Vector) received training sequence, it is only necessary to scan weights all in the simulation code book of user equipment Vector.Therefore, uplink beam figuration training sequence will be sent Q times (i.e. equal to user equipment Simulation code book size), sweared every time using different weights in the simulation code book of user equipment Amount.

In step 1002, equivalent channel is estimated in base station according to the training sequence received (for example it is represented byH^ULW) wherein, w ∈ Wc, and calculate channel quality.Base Stand selection user equipment simulation code book in weight vector w corresponding with optimal channel quality_optMake For the weight vector that will be used in follow-up uplink channel transmission by user equipment.

In step 1003, base station the index for the weight vector selected in step 1002 notify to User equipment.

In step 1004, the weight vector that user equipment is selected using base station continues to send upgoing wave Beam figuration training sequence.The training sequence that base station is sent according to user equipment scans the mould of base station Intend weight vectors all in code book.Because base station will scan base station based on these training sequences All weight vectors in code book are simulated, so the training sequence will be repeated P times (i.e. etc. In the size of the simulation code book of base station).

In step 1005, base station estimation equivalent channel (is for example represented by f^TH^ULw_opt), Wherein, f^TOptimal weights vector f in ∈ Fc, and the simulation code book of calculation base station_opt.Here, Base station according to training sequence calculate base station simulation code book in each weight vector under obtained by Channel quality, and therefrom select corresponding with optimal channel quality weight vector as below The weight vector of uplink communication is carried out with user equipment.

So, previous step 1001-1005, it is determined that base station and user for uplink communication The respective weight vector of equipment, it is up so as to be carried out using identified optimal weights vector Communication.

Return now to the flow chart of the wave beam forming training shown in Fig. 8.In step 804, base station 702 pairs of simulation code books of sub-codebook generation unit will be used to reduce, so as to obtain being used for reversely The sub-codebook of communication.

In step 1101, base station is each weight in the simulation code book of base station according to channel quality Vector selects a corresponding channel quality, so as to form the first channel quality set.Due to base The uplink beam figuration training sequence that station has been based on receiving calculates the simulation code of user equipment Channel under the multiple combinations of weight vector in the simulation code book of weight vector and base station in this Quality, so, the weight vector number in the simulation code book of user equipment is more than the feelings of 1 Under condition, each weight vector in the simulation code book of base station is by the simulation code book with user equipment Each weight vector be combined.So, each weight vector in the simulation code book of base station Likely correspond to multiple channel qualities.In a preferred embodiment, from the simulation with base station Channel quality highest one is selected in the corresponding channel quality of each weight vector in code book. So, in the first channel quality set, each weight vector tool in the simulation code book of base station There is a corresponding channel quality.

In step 1102, base station is each in the simulation code book of user equipment according to channel quality Weight vector selects a corresponding channel quality, so as to form second channel quality set.With Similar to the abovely, each weight vector in the simulation code book of user equipment may be with multiple channels Quality correspondence.In a preferred embodiment, base station is from the simulation code book with user equipment The corresponding multiple channel qualities of each weight vector in selection channel quality highest one.This Sample, in second channel quality set, each weight vector in the simulation code book of user equipment With a corresponding channel quality.

In step 1103, the channel matter of the first predetermined number is selected from the first channel quality set Amount, and according to the son of weight vector corresponding with the channel quality of the first predetermined number generation base station Simulate code book.Here, the concrete numerical value of the first predetermined number can be according to the simulation code book of base station Size selected.For example, when in the simulation code book of base station include very many (such as 2000 It is individual) weight vector when, in order to reduce wave beam forming training expense, can only select wherein Sub-fraction (can be determined according to performance requirements, such as 20).Show at another In example, the size of the simulation code book of user equipment can also be additionally considered.Wave beam forming training Expense is relevant also with the size of the simulation code book of user equipment, therefore, it is determined that the first predetermined number During purpose concrete numerical value, the simulation code book of base station and the simulation code of user equipment can be considered simultaneously This size.

In step 1104, the channel matter of the second predetermined number is selected from second channel quality set Amount, and user terminal is generated according to weight vector corresponding with the channel quality of the second predetermined number Submodule intends code book.It is similar with step 1103, the concrete numerical value of the second predetermined number can according to The size of the simulation code book of family equipment is selected.In another example, can also additionally it examine Consider the size of the simulation code book of base station.

In the method described above in relation to Figure 11, each step need not be performed sequentially, some steps Suddenly it can perform parallel.For example, step 1101 and step 1102 can be performed simultaneously, step 1103 and step 1104 can also perform simultaneously.

Return now to Fig. 8.Next, in step 805, base station in step 1104 generating The submodule of user equipment is intended code book and notified to user equipment.In one example, base station need not be sent out Send user equipment submodule intend code book in itself, but need to only send the submodule intend code book index with Reduce signaling consumption.User equipment just can determine that submodule intends which code book includes according to the index A little weight vectors.

In step 806, the parameter that down beam shaping is trained is sent to user equipment by base station. As described above, in FDD system, because up-downgoing channel does not have reciprocity, it is necessary to respectively Carry out uplink and downlink wave beam forming training.So, proceeding down beam shaping training Before, base station needs the parameter that down beam shaping is trained to be sent to user equipment.Here, The parameter of down beam shaping training includes, for example, between at the beginning of down beam shaping training With end time, training sequence transmission times etc..

Down beam shaping training is carried out between step 807, base station and user equipment.At this In training process, the submodule that base station uses the step 1103 in Figure 11 to determine intends code book, and uses The submodule that family equipment uses the step 1104 in Figure 11 to determine intends code book.Due to base station and user All uses submodule of equipment intends code book and carries out down beam shaping training, so as to reduce down going wave The expense of beam figuration training.

The process of down beam shaping training is in addition to the simulation code book of use is different, other side It is similar with the training of uplink beam figuration.For example, can also be using poor in down beam shaping training The schemes such as most search, single feedback search.

Figure 12 shows the flow chart that down beam shaping training is carried out using exhaustive search scheme. As shown in figure 12, in step 1201, base station repeats to send the training for down beam shaping Sequence.Here, the transmission times of training sequence can depend on the submodule plan code book and use of base station The submodule of family equipment intends the size of code book.For example, intending code book when the submodule of base station includes Ps power Weight vector and user equipment submodule intend code book include Qs weight vector when, for down going wave The training sequence of beam figuration needs number of times to be sent to be equal to Ps × Qs.

In step 1202, user equipment estimates equivalent channel according to the training sequence received, And calculate the combination of optimal weight vector.That is, according to training sequence, user equipment It can calculate：The submodule of base station intends each weight vector in code book and the submodule of user equipment In the whole combinations for intending each weight vector in code book, any combination can reach To best channel quality.In the communication of follow-up down channel, base station and user equipment will Communicated using this selected a pair of weight vectors.

In step 1203, user equipment notifies the result of calculating to base station.That is, with Family equipment intends which weight vector in code book will be used for descending letter to the submodule of base station repeats base station The communication in road.Generally, user equipment is the rope for the submodule of base station being intended the weight vector in code book Draw and inform to base station.In another embodiment, user equipment can also will make user equipment The index of weight vector is also notified to base station in the lump.

By above-mentioned steps 1201-1203, base station and user equipment in downlink communication have been obtained Each by the weight vector of use, so as to successfully carry out downlink communication.

As shown in figure 13, in step 1301, base station is according to down beam shaping training parameter Repeat to send down beam shaping training sequence.In single feedback system, due to user equipment Use omni-beam (i.e. predetermined weight vector) received training sequence, it is only necessary to scan base station Submodule intend all weight vectors in code book.Therefore, down beam shaping training sequence will be by Ps times (submodule i.e. equal to base station intends the size of code book) is sent, every time using the submodule of base station Intend weight vectors different in code book.

In step 1302, user equipment estimates equivalent channel according to the training sequence received, and Calculate channel quality.With optimal channel quality in the submodule plan code book of user equipment selection base station Corresponding weight vector is sweared as the weight that will be used in follow-up downlink channel transmission by base station Amount.

In step 1303, user equipment leads to the index for the weight vector selected in step 1302 Know to base station.

In step 1304, the weight vector that base station is selected using base station sends down beam shaping and instructed Practice sequence.The training sequence that user equipment is sent according to base station is intended to scan the submodule of user equipment All weight vectors in code book.Because user equipment will scan user based on these training sequences The submodule of equipment intends all weight vectors in code book, so the training sequence will be repeated Qs Secondary (submodule i.e. equal to user equipment intends the size of code book).

In step 1305, user equipment estimation equivalent channel, and calculate the submodule plan code book of user In optimal weights vector.Here, user equipment calculates the submodule in user according to training sequence Channel quality obtained by intending under each weight vector in code book, and therefrom selection with it is optimal The corresponding weight vector of channel quality is used as the weight vector for carrying out downlink communication with base station below.

So, previous step 1301-1305, it is determined that base station and user for downlink communication The respective weight vector of equipment, it is descending so as to be carried out using identified optimal weights vector Communication.

As shown in figure 14, exhaustive search algorithm, base station energy are used in the training of uplink beam figuration Access the channel quality c under the combination of all weight vectors_i,j=| f^i,TH^ULw^j|, wherein

1≤i≤P,1≤j≤Q.Wherein, a_iIn weight vector it is f for base stationⁱWhen reach most Good channel, i.e. a_i=max_jc_i,j,1≤i≤P。b_jIn weight vector it is w for user equipment^j When the optimal channel quality that reaches, i.e. b_j=max_ic_i,j,1≤j≤Q.Gathered {a₁,a₂,…,a_PAnd { b₁,b₂,…,b_QAfter, the P of maximum is therefrom selected respectively_sAnd Q_sIndividual element, The submodule of corresponding weight vector composition base station intends code book and the submodule of user equipment intends code book. In Figure 14 example, P=Q=4, P_s=Q_s=2, the positional representation of grey is obtained in figure Submodule intend code book in weight vector index.

As shown in figure 15, in single feedback search algorithm, user equipment scans user equipment Simulate all weight vector w in code book^j, 1≤j≤Q, base station utilizes omni-beam f_omniConnect Receive and measure channel quality, therefrom selection causes the best weight vector of channel quality (Wherein w ∈ Wc) and feed back to user equipment.Then, User equipment, which is fixed, uses optimal weight vector w_opt, in the simulation code book of base station scans base station All weight vector fⁱ, 1≤i≤P, therefrom selection is so that the best weight vector of channel quality (f_opt=argmax | f^TH^ULw_opt|, wherein f ∈ Fc).Therefore, if uplink beam figuration is instructed Practice and use single feedback algorithm, base station can only obtain the weight vector in base station and user equipment Channel quality information under part combination, in the case, a_i=| f^i,TH^ULw_opt|,Similarly, respectively from set { a₁,a₂,…,a_PAnd { b₁,b₂,…,b_Q} The maximum P of middle selection_sAnd Q_sIndividual element, the submodule of corresponding weight vector composition base station intends code book F_sIntend code book W with the submodule of user equipment_s.As shown in figure 5, wherein P=Q=4, P_s= Q_s=2, the submodule that the positional representation of grey is obtained in figure intends the index of weight vector in code book.

Above description is all based on the training of uplink beam figuration and set to reduce base station and/or user Standby simulation code book, so that the submodule for downlink communication for obtaining base station and/or user equipment is intended Code book.Intend code book using submodule in down beam shaping training process, reduce downlink wave beam The expense of figuration training.But, the embodiment of the application is not limited to above embodiment. It will be appreciated by those skilled in the art that being also based on down beam shaping training to reduce base station And/or the simulation code book of user equipment, obtain the submodule plan code book of base station and/or user equipment. Intend code book using submodule in uplink beam figuration training process, so as to reduce uplink beam figuration The expense of training.

In addition, in the above embodiments, the simulation code book of base station and the simulation code of user equipment Originally it is obtained for reduction.In actual applications, can select only reduction base station simulation code book or Person only reduces the simulation code book of user equipment, can equally realize reduction wave beam forming training expense Technique effect.

, can also be to base station and user equipment in addition, in another embodiment of the application Submodule is intended code book and is corrected.

As illustrated in fig 16 a, for base station electronic equipment include channel quality estimation unit 1601, Sub-codebook generation unit 1602, correction unit 1605, transmission configuration unit 1603 and memory 1604.Wherein, channel quality estimation unit 1601, sub-codebook generation unit 1602, transmission are matched somebody with somebody Put unit 1603 and memory 1604 and the channel quality estimation unit 701 shown in Fig. 7 a, son Code book generation unit 702, transmission configuration unit 703 and memory 704 are similar, herein just not Repeat these part identical functions.

The first correction unit (not shown) can be included by correcting unit 1605.Wherein, using One correction unit is intended code book to the submodule of base station and is corrected.In addition, in another embodiment, The second correction unit (not shown) can also be included by correcting unit 1605, the second correction unit Intend code book for the submodule to user equipment to be corrected.

The trimming process of first correction unit and the second correction unit will be described below, still respectively Reduced using being trained by uplink beam figuration the down beam shaping simulation code book that uses of training as Example.

In the trimming process of the first correction unit, by according to upper between base station and user equipment Row signal transmission frequencies are intended code book to the submodule of base station and are corrected, and use the submodule after correction Intend code book and carry out down beam shaping training.

Specific steps as shown in figure 17, in step 1701, intend in code book by the submodule for base station Each weight vector, calculate each base station end day for causing the weight vector and up channel Line response vector distance minimum horizontal angle of arrival and vertical angle of arrival.That is, to the submodule of base station Intend the weight vector f in code book_in, calculate its corresponding horizontal angle of arrival θ_inWith vertical angle of arrivalAnd meet following condition：

WhereinFor the base station end antenna response vector of up channel.

In step 1702, the reciprocity of up-downgoing interchannel antenna angle of arrival in FDD system is utilized Property, obtain the horizontal angle of arrival θ calculated with step 1701_inWith vertical angle of arrivalUnder corresponding The first antenna response vector of the base station end of row channel.

In step 1703, selection and above-mentioned first antenna response vector from the simulation code book of base station The minimum weight vector of distance, be used as the weight vector after correction.That is, setting correction Weight vector f afterwards_out, then

WhereinFor the base station end antenna response vector of down channel, F is the mould of base station Intend code book.

Each weight vector that submodule for base station is intended in code book carries out trimming process above, Intend code book so as to finally give corrected submodule.Transmission configuration unit 703 will use the warp The submodule of overcorrect intends code book to configure base station so that base station makes in down beam shaping training Intend code book with corrected submodule.

In the trimming process of the second correction unit, by according to upper between base station and user equipment The antenna configuration of row signal transmission frequencies and user equipment is intended code book to the submodule of user equipment and entered Row correction, and carry out down beam shaping training using the submodule plan code book after correction.Correspondingly, Base station by the submodule of corrected user equipment intend code book notify to user equipment (for example through Step 805 as shown in Figure 8).As the example of a deformation, the second correction unit is set Not calibrated submodule is obtained in user equipment side rather than base station side, i.e. user equipment to intend after code book, Voluntarily intend code book to its submodule according to uplink signal transmissions frequency to be corrected, in this illustration User equipment need not notify its antenna configuration information to base station to reduce signaling consumption.When When second correction unit is arranged on user equipment side, base station is by the user equipment before correction Submodule intends code book and notifies to give user equipment (such as by Fig. 8 step 805).

As shown in figure 18, in step 1801, the submodule for user equipment intends code to specific steps Each weight vector in this, calculates and each user of the weight vector and up channel is set Standby end antenna response vector distance minimum horizontal angle of arrival and vertical angle of arrival.Set for user Standby submodule intends the weight vector w in code book_in, calculate its corresponding horizontal angle of arrival θ_inWith hang down Straight angle of arrivalAnd meet following condition

WhereinFor the user terminal antenna response vector of up channel.

In step 1802, the reciprocity of up-downgoing interchannel antenna angle of arrival in FDD system is utilized Property, obtain down channel corresponding with horizontal angle of arrival and vertical angle of arrival that step 1801 is calculated User equipment end the second antenna response vector.

In step 1803, selection and the second antenna response vector from the simulation code book of user equipment The minimum weight vector of distance, be used as the weight vector after correction.That is, setting correction Weight vector w afterwards_out, then meet

WhereinFor the user terminal antenna response vector of down channel, W is user equipment Simulation code book.

It described above is according to the uplink signal transmissions frequency between base station and user equipment and user The antenna configuration of equipment is intended code book to the submodule of base station and user equipment and is corrected, and uses school Submodule after just intends code book and carries out down beam shaping training.

In another embodiment, down beam shaping training is carried out first, based on downlink wave beam The result of figuration training reduces the simulation code book of base station and/or user equipment, so as to obtain base station And/or the submodule for uplink communication of user equipment intends code book.In such embodiments, such as Shown in Figure 16 b, correction unit 1615, root can also be arranged in the electronic equipment of user equipment According to the uplink signal transmissions frequency and the antenna configuration pair of user equipment between base station and user equipment The submodule of user equipment is intended code book and is corrected, and is intended using the submodule after correction in code book progress Row wave beam forming is trained.Alternatively, correction unit 1615 can also be according to base station and user equipment Between uplink signal transmissions frequency and the antenna configuration of base station code book intended to the submodule of base station carried out Correction, intends code book using the submodule after correction so as to base station and carries out uplink beam figuration training.Can To understand, user equipment not calibrated base station submodule can be intended code book notify to base station and by Base station self-correction.

Based on be used for submodule plan code book that uplink beam train of the downlink wave beam training result to base station The specific steps being corrected as shown in figure 19, in step 1901, intend by the submodule for base station Each weight vector in code book, calculates each base for causing the weight vector and down channel End antenna response vector distance of standing minimum horizontal angle of arrival and vertical angle of arrival.That is, for base The submodule stood intends the weight vector f in code book_in, calculate its corresponding horizontal angle of arrival θ_inWith it is vertical Angle of arrivalAnd meet

WhereinFor the base station end antenna response vector of down channel.

In step 1902, the reciprocity of up-downgoing interchannel antenna angle of arrival in FDD system is utilized Property, obtain the horizontal angle of arrival θ calculated with step 1901_inWith vertical angle of arrivalOn corresponding The third antenna response vector of the base station end of row channel.

In step 1903, selection and the third antenna response vector from the simulation code book of base station The minimum weight vector of distance, is used as the weight vector after correction.That is, setting after correction Weight vector f_out, then

WhereinFor the base station end antenna response vector of up channel, F is the mould of base station Intend code book.

Each weight vector that submodule for base station is intended in code book carries out trimming process above, Intend code book so as to finally give corrected submodule.Transmission configuration unit 703 will use the warp The submodule of overcorrect intends code book to configure base station so that base station makes in the training of uplink beam figuration Intend code book with corrected submodule.

Based on be used for submodule plan that uplink beam train of the downlink wave beam training result to user equipment The step of code book is corrected figure 20 illustrates.As shown in figure 20, it is right in step 2001 In user equipment submodule intend code book in each weight vector, calculate cause the weight vector with The minimum horizontal angle of arrival of the distance of each user equipment end antenna response vector of down channel and Vertical angle of arrival.For the weight vector w in the submodule plan code book of user equipment_in, calculate its phase The horizontal angle of arrival θ answered_inWith vertical angle of arrivalAnd meet

WhereinFor the user terminal antenna response vector of down channel.

In step 2002, the reciprocity of up-downgoing interchannel antenna angle of arrival in FDD system is utilized Property, obtain up channel corresponding with horizontal angle of arrival and vertical angle of arrival that step 2001 is calculated User equipment end the 4th antenna response vector.

In step 2003, selection and the 4th antenna response vector from the simulation code book of user equipment The minimum weight vector of distance, be used as the weight vector after correction.That is, setting correction Weight vector w afterwards_out, then meet

WhereinFor the user terminal antenna response vector of up channel, W is user equipment Simulation code book.

In one embodiment according to the application, horizontal angle of arrival θ and vertical angle of arrivalCan be with It is discretized, for example, is restricted to：

That is, horizontal angle of arrival and vertical angle of arrival are sampled, K_WAnd K_HRespectively sample Point number, in one embodiment, can be set to K_W=2W, K_H=2H, wherein W are water Square to antenna number, H is vertical direction antenna number.

When trained by uplink beam figuration the submodule for obtaining base station and user equipment intend code book and When preparing to be used for the down beam shaping training stage, the weight vector of base station and user equipment should be from The corresponding submodule obtained is intended choosing in code book.Down beam shaping training can use any training Algorithm, is simply constrained in submodule and intends carrying out in code book.If for example, down beam shaping is instructed Practice and use exhaustive search algorithm, then need to detect P_s×Q_sIndividual weight vectors pair, complexity is by original P × Q be reduced to P_s×Q_s.If down beam shaping training uses single feedback algorithm, multiple Miscellaneous degree is reduced to P by original P+Q_s+Q_s。

Furthermore, it is contemplated that data volume and the special requirement of user, be related in the present invention on son The notice for simulating code book can be by following signaling bear in such as LTE system：Such as MAC layer Or RRC (radio resource control) layer etc. is common by DSCH Downlink Shared Channel DL-SCH or up The dedicated signaling of channel UL-SCH carryings is enjoyed, wherein, MAC layer signaling is compared to rrc layer Faster, rrc layer signaling is compared to MAC layer signaling more for ageing stronger, the solution bit rate of signaling Easily realize.Specifically, carried using MAC layer dedicated signaling on submodule plan code book In the example of notice, specifically in one or more Medium Access Control (MAC) Protocol Data Units (PDU) Specific MAC controls the bit that cell (Control Element) is included to indicate (example Such as encode to indicate the index of each weight vector), cell setup can be controlled for the MAC Special LCID is used for the notice that submodule intends code book to identify it.Special using rrc layer Signaling bear is intended on submodule in the example of the notice of code book, specifically for example passes through radio resource The index for the weight vector that information in control information unit includes to indicate submodule to intend in code book. The notice for intending code book on submodule is for example related to the step 903 in the step 805 in Fig. 8, Fig. 9, Step 1303 in step 1203 in step 1003 in Figure 10, Figure 12, Figure 13.

In order to further illustrate the present invention, a more specifically embodiment is given below.

Consider a single extensive aerial system of cell multi-user millimeter wave for working in fdd mode System, base station services K user simultaneously using mixing precoding framework, and base station end is equipped with K radio frequency Link, numerical portion is using broken zero (ZF) precoding.Base station and user terminal are equipped with ULA Aerial array, antenna number is respectively M and N, and using classical DFT wave beam forming code books Design, code book is determined by following codebook matrix

Here N_aRepresent antenna number, N_cRepresent codebook size.Specific system emulation parameter is as follows Shown in table：

Table 1 emulates design parameter

Assuming that we are transmitted using OFDM parameters specified in LTE, it is per 0.5ms One time slot, includes 7 OFDM symbols.Limited by physical condition, phase shifter can not be one Switch in the individual OFDM symbol cycle, therefore each OFDM symbol can detect a kind of weight The combination of vector.Moreover, it is assumed that the cycle of beam search is 0.5s.It can then calculate and obtain, B=7000 OFDM symbol is included in each beam search cycle.

Consider under traditional exhaustive search mechanism, wave beam training expense is PQ OFDM symbol. And it is proposed that based on reduction code book wave beam training mechanism can will training cost reduction arrive P_sQ_sIndividual OFDM symbol.

It is average to user reachable below to verify that proposed reduction code book trains the performance of mechanism Speed is emulated, and four kinds of schemes are considered altogether, are (1) P respectively_s=12, Q_s=2, have the right Weight vector correction；(2)P_s=12, Q_s=2, no weight vector correction；(3)P_s=8, Q_s=1, There is weight vector correction；(4)P_s=8, Q_s=1, no weight vector correction.

Following table gives the training expense contrast of traditional scheme and this patent scheme, with percentage shape Formula is stated：

Scheme	Train expense
		Traditional scheme	29.26%
Reduce code book scheme, Ps=12, Qs=2	0.34%
		Reduce code book scheme, Ps=8, Qs=1	0.11%

From upper table it can be seen that, the wave beam forming training method of the application can greatly reduce descending The expense of (up) wave beam forming training.

In the case where considering training expense, Figure 21 gives is in channel condition N_cl=1,N_rayThe user of several schemes average achievable rate when=3.It can be seen that, due to base The wave beam training program for intending code book in submodule greatly reduces wave beam training expense, therefore compared to biography System scheme adds the average achievable rate of user, this demonstrate that the wave beam forming instruction that the application is proposed The performance of FDD system can be improved by practicing method.It may be noted furthermore that intending in identical submodule Under the conditions of codebook size, compared with the presence of correcting scheme without the significant performance gain of correcting scheme, Therefore aligning step is included in the preferred embodiment that generation submodule intends code book.

It is N that Figure 22, which is given in channel condition,_cl=3, N_reyThe user of several schemes puts down when=8 Equal achievable rate, can obtain similar conclusion.While we also noted that, compared to channel bar Part is N_cl=1, N_rey=3 situation, performance gain slightly has reduction, particularly P_s=8, Q_s=1 When, therefore when channel dispersion body is more, can suitably increase submodule and intend the size of code book to protect Performance is demonstrate,proved, in other words, the size that submodule intends code book can be alternatively dynamic change, for example Dynamically adjusted according to the change of current application scene or monitor system performance, the adjustment can be with Performed by the equipment such as base station of network side or configured by operator according to program setting, and lead to Cross broadcast or special control signaling notify opposite end communication equipment, such as user equipment, so as to Opposite end communication equipment chooses the configuration parameter of corresponding number as submodule plan code book.

The technology of present disclosure can be applied to various products.For example, base station can be by It is embodied as any kind of evolved node B (eNB), such as grand eNB and small eNB.It is small ENB can to cover the eNB of the cell smaller than macrocell, such as micro, slight eNB, micro- eNB and Family (femto) eNB.Instead, base station may be implemented as the base of any other type Stand, such as NodeB and base transceiver station (BTS).Base station can include：It is configured as control The main body of radio communication processed (is also referred to as base station equipment, such as electronic equipment described in this application 700 and 710)；And it is arranged on the local one or more long distance wireless heads different from main body Hold (RRH).In addition, the various types of terminals being described below can be by temporarily Or semi-persistent perform base station functions and as base station operation.

For example, terminal device may be implemented as mobile terminal (such as smart phone, flat board People's computer (PC), notebook type PC, portable game terminal, portable/softdog type Mobile router and digital camera device) or car-mounted terminal (such as car navigation device). The terminal that terminal device is also implemented as performing Machine To Machine (M2M) communication (is also referred to as For machine type communication (MTC) terminal).In addition, terminal device can be installed in above-mentioned Wireless communication module (such as integrated circuit including single wafer in each terminal in terminal Module, such as electronic equipment 700 described in this application and 710).

CPU (CPU) 2301, which is played, to be based on being stored in read-only storage (ROM) 2302 or memory cell 2308 on program perform all kinds of processing data processing unit effect. For example, CPU 2301 performs the processing based on foregoing sequences.Random access memory (RAM) Program, data that 2303 storages are performed by CPU 2301 etc..CPU 2301、ROM 2302 It is connected with each other with RAM 2303 via bus 2304.

CPU 2301 is connected to via bus 2304 and inputted and output interface 2305, and by The input block 2306 of the compositions such as all kinds of switches, keyboard, mouse, microphone and by display, The output unit 2307 of the compositions such as loudspeaker is connected to the input and output interface 2305.For example, CPU 2301 performs all kinds of processing in response to the instruction inputted from input block 2306, and will place Reason result is exported to output unit 2307.

The memory cell 2308 for being connected to input and output interface 2305 is for example made up of hard disk, And stored thereon by the programs performed of CPU 2301 and Various types of data.Communication unit 2309 network and external device communication via such as internet or LAN.

The driver 2310 for being connected to input and output interface 2305 drives such as disk, light Disk, magneto-optic disk or semiconductor memory (such as storage card) etc removable media 2311, And obtain the Various types of data of the such as content and key information that record thereon.For example, by making With the content and key data of acquisition, performed by CPU 2301 based on reproduction program for wireless The processing such as the wave beam forming training of communication.

The method and system of the present invention may be achieved in many ways.For example, can by software, Hardware, firmware or software, hardware, firmware any combinations come realize the present invention method and System.The said sequence of the step of for methods described is of the invention merely to illustrate The step of method, is not limited to order described in detail above, unless specifically stated otherwise. In addition, in certain embodiments, the present invention can be also embodied as recording to journey in the recording medium Sequence, these programs include the machine readable instructions for being used to realize the method according to the invention.Thus, The present invention also covering storage is used for the recording medium for performing the program of the method according to the invention.

Finally, the use of the application is following is embodied in various ways.

(1) a kind of electronic equipments for the first communication device being used in wireless communication system of, including

Memory, is configured as simulation code book of the storage for the first communication device, simulation code This includes multigroup configuration parameter of one group of phase shifter for the first communication device；And

Process circuit, is configured as

Pilot signal transmission point based on multigroup configuration parameter and from secondary communication device The channel of the first channel to the secondary communication device to the first communication device is not carried out Estimation,

Meet the configuration parameter group corresponding to predetermined condition person to generate in selection channel estimation results The submodule of reduction intends code book,

First communication device described in codebook configuration is intended to the secondary communication device based on the submodule Pilot signal transmission, for the of the first communication device to the secondary communication device The channel estimation of two channels.

(2) electronic equipments of the as described in (1), wherein each group in multigroup configuration parameter corresponds to one Individual weight vector, each weight vector is used for the phase value for configuring each phase shifter in this group of phase shifter.

(3) electronic equipments of the as described in (1), the process circuit is additionally configured to be based on described first Signal transmission frequencies between communicator and the secondary communication device intend code book to the submodule of reduction The submodule for being corrected to be corrected intends code book, and codebook configuration institute is intended using the submodule of the correction First communication device is stated to the pilot signal transmission of the secondary communication device.

(4) electronic equipments of the as described in (1), memory, which is additionally configured to storage, is used for described second The opposite end simulation code book of communicator, opposite end simulation code book, which is included, is used for the secondary communication device One group of phase shifter multigroup configuration parameter,

The process circuit is additionally configured in (opposite end sub-codebook generation unit) selection channel estimation results The configuration parameter group of the secondary communication device corresponding to predetermined condition person is met, is used for generating The reduction of the secondary communication device to Terminals Die intend code book, wherein, the secondary communication device Based on the codebook configuration of intending Terminals Die to the first communication device to the secondary communication device Pilot signal reception.

(5) electronic equipments of the as described in (4), the process circuit is additionally configured to based on described the Signal transmission frequencies and described second between one communicator and the secondary communication device communicate The antenna configuration of device is intended code book to Terminals Die to reduction and is corrected to be corrected to terminal Code book is simulated, wherein, the secondary communication device is intended code book to Terminals Die using the correction and matched somebody with somebody Put the pilot signal reception to the first communication device to the secondary communication device.

(6) electronic equipments of the as described in (4), the process circuit is additionally configured to configuring described the One communicator is to before the pilot signal transmission of the secondary communication device, and generation is included on institute State and Terminals Die is intended the message of code book to notify the secondary communication device.

(7) electronic equipments of the as described in (1)-(6), the process circuit is additionally configured to be based on institute Channel estimation feedback of the secondary communication device to the second channel is stated, from multigroup configuration parameter It is middle to determine one group of data signal transmission for configuring by the second channel, wherein, it is described Channel estimation feedback includes the optimal corresponding channel estimation results of one group of configuration parameter of channel performance.

(8) electronic equipments of the as described in (7), wherein, the electronic device works are described first logical T unit, in addition to described group of phase shifter, radio frequency link and multiple antennas, wherein this group phase shift Device is arranged between the radio frequency link and the multiple antenna, wherein, the process circuit is based on The submodule intends organizing the phase of phase shifter described in codebook configuration, and using the multiple antenna to described Secondary communication device pilot signal transmitted.

(9) electronic equipments of the as described in (8), wherein, the first communication device is base station, described Secondary communication device is user equipment, and first channel corresponds to up channel, second letter Road corresponds to down channel.

(10) electronic equipments of the as described in (8), wherein, the first communication device is user equipment, The secondary communication device is base station, and first channel corresponds to down channel, second letter Road corresponds to up channel.

(11) electronic equipments of the as described in (9), the process circuit is additionally configured to carrying out to institute Secondary communication device is stated to before the channel estimation of the first channel of the first communication device, generation For the control message for the pilot signal transmission for configuring secondary communication device, the control message is included The control parameter of pilot signal transmission.

(12) electronic equipments of the as described in (9), wherein, the electronic equipment includes multiple rf chains Road, each radio frequency link is mutually coupled with one group of phase shifter, the electronic equipment also include with it is described many The digital precode device of individual radio frequency link coupling, the process circuit is additionally configured to be based on from many The channel estimation feedback generation digital precode matrix of the individual secondary communication device, so as to the number Word precoder carries out digital precode to the data-signal for the plurality of secondary communication device.

(13) electronic equipments of the as described in (1), wherein, the wireless communication system is FDD Communication system.

(14) a kind of electronic equipments for the secondary communication device being used in wireless communication system of, including

Memory, is configured as simulation code book of the storage for the secondary communication device, simulation code This includes multigroup configuration parameter of one group of phase shifter for the secondary communication device；And

Process circuit, is configured as

Based on multigroup configuration parameter configuration from the secondary communication device to first communication device Pilot signal transmission, for the of the secondary communication device to the first communication device The channel estimation of one channel,

The submodule plan for the reduction of the secondary communication device is obtained from the first communication device Code book, submodule plan code book is the first communication device based on the channel to first channel Meet what the configuration parameter group corresponding to predetermined condition person was generated in estimated result,

Intend codebook configuration based on the submodule to connect the pilot signal from the first communication device Receive, and perform the first communication device to the channel of the second channel of the secondary communication device Estimation.

(15) one kind is used for the wave beam forming training method of FDD (FDD) millimetre-wave attenuator, bag Include：

User equipment sends up training sequence according to user terminal code book to base station；

Base station receives up training sequence and calculates weight vector and base station end in user terminal code book Channel quality under the multiple combinations of weight vector in code book；

It is each weight vector one corresponding channel of selection in base station end code book according to channel quality Quality, so as to form the first channel quality set；

It is each weight vector one corresponding channel of selection in user terminal code book according to channel quality Quality, so as to form second channel quality set；

Select the channel quality of the first predetermined number from the first channel quality set, and according to first The base station end code book of the corresponding weight vector generation reduction of channel quality of predetermined number；

Select the channel quality of the second predetermined number from second channel quality set, and according to second The user equipment end code book of the corresponding weight vector generation reduction of channel quality of predetermined number；And

Down beam shaping is carried out using the base station end code book of reduction and the user equipment end code book of reduction Training.

(16) wave beam forming training methods of the according to (15), wherein, the power in user terminal code book The multiple combinations of weight vector in weight vector base station end code book include：

Whole combinations of weight vector in user terminal code book and the weight vector in base station end code book.

(17) wave beam forming training methods of the according to (15), wherein, in the user terminal code book Weight vector and the multiple combinations of the weight vector in base station end code book include：

In whole combinations of weight vector in user terminal code book and the weight vector in base station end code book At least a portion.

(18) wave beam forming training methods of the according to (17), wherein, in the user terminal code book Weight vector and the multiple combinations of the weight vector in base station end code book include：In base station end code book The combination with whole weight vectors in user terminal code book of one of weight vector, and user terminal code Combination of one of the weight vector in this with whole weight vectors in base station end code book.

(19) wave beam forming training methods of the according to (18), wherein, according in base station end code book One of weight vector and the channel matter obtained by the combination of whole weight vectors in user terminal code book Amount, selecting will be with whole weight in base station end code book in the weight vector in the user terminal code book The weight vector that vector is combined.

(20) wave beam forming training methods of the according to (15), wherein, it is being according to channel quality Each weight vector in base station end code book selects a corresponding channel quality, so as to form first It is each weight vector selection optimum channel in base station end code book in the step of channel quality set Quality.

(21) wave beam forming training methods of the according to (15), wherein, it is use according to channel quality Each weight vector in the code book of family end selects a corresponding channel quality, so as to form the second letter It is each weight vector selection optimum channel matter in user terminal code book in the step of road quality set Amount.

(22) wave beam forming training methods of the according to (15), in addition to：Carrying out downlink wave beam Before figuration training, the user equipment end code book of reduction is sent to user equipment.

(23) wave beam forming training methods of the according to (15), in addition to：User equipment is to base station Transmission antenna parameter.

(24) wave beam forming training methods of the according to (23), wherein, the antenna parameter includes The spacing of antenna type and/or antenna.

(25) wave beam forming training methods of the according to (23), wherein, base station is joined according to the antenna Number calculates the antenna response vector of user equipment.

(26) wave beam forming training methods of the according to (15), in addition to：To the base station end code of reduction Originally it is corrected.

(27) wave beam forming training methods of the according to (26), wherein, to the base station end code book of reduction The step of being corrected includes：

For each weight vector in the base station end code book of reduction, calculate cause the weight vector with The minimum horizontal angle of arrival of each base station end antenna response vector distance of up channel and vertical arrival Angle；

Obtain the base station end of down channel corresponding with the horizontal angle of arrival and vertical angle of arrival that are calculated First antenna response vector；

Selection is sweared with the minimum weight of the distance of the first antenna response vector from base station end code book Amount, is used as the weight vector after correction.

(28) wave beam forming training methods of the according to (15), in addition to：To the user terminal code of reduction Originally it is corrected.

(29) wave beam forming training methods of the according to (28), wherein, to the user terminal code book of reduction The step of being corrected includes：

For each weight vector in the user terminal code book of reduction, calculate cause the weight vector with The minimum horizontal angle of arrival of each user equipment end antenna response vector distance of up channel and vertical Angle of arrival；

The user for obtaining down channel corresponding with the horizontal angle of arrival and vertical angle of arrival that are calculated sets The second antenna response vector at standby end；

The selection power minimum with the distance of second antenna response vector from the code book of user equipment end Weight vector, is used as the weight vector after correction.

(30) wave beam forming training methods of the according to (27) or (29), wherein, by sampling to water Flat angle of arrival and vertical angle of arrival carry out discretization.

(31) wave beam forming training methods of the according to (30), wherein, the sampled point of horizontal angle of arrival Number is equal to the integral multiple of correspondence horizontal direction antenna number, and the sampled point number of vertical angle of arrival is equal to The integral multiple of correspondence vertical direction antenna number.

(32) one kind is used for the base station of FDD (FDD) millimetre-wave attenuator, including processor, described Processor is configured as：

Receive the up training sequence sent by user equipment according to user terminal code book；

Calculate a variety of groups of the weight vector in user terminal code book and the weight vector in base station end code book Channel quality under closing；

(33) one kind is used for the base station of FDD (FDD) millimetre-wave attenuator, including：

Receiving unit, for receiving the up training sequence sent by user equipment according to user terminal code book；

Computing unit, for calculating the weight in weight vector and base station end code book in user terminal code book Channel quality under the multiple combinations of vector；

First set generation unit, for being that each weight in base station end code book is sweared according to channel quality Amount one corresponding channel quality of selection, so as to form the first channel quality set；

Second set generation unit, for being that each weight in user terminal code book is sweared according to channel quality Amount one corresponding channel quality of selection, so as to form second channel quality set；

First choice unit, the channel for selecting the first predetermined number from the first channel quality set Quality；

Second selecting unit, the channel for selecting the second predetermined number from second channel quality set Quality；

First code book generation unit, for according to weight corresponding with the channel quality of the first predetermined number The base station end code book of vector generation reduction；

Second code book generation unit, for according to weight corresponding with the channel quality of the second predetermined number The user equipment end code book of vector generation reduction；And

(34) one kind is used for the wave beam forming training method of FDD (FDD) millimetre-wave attenuator, including：

Base station sends descending training sequence according to base station end code book to user equipment；

User equipment receives descending training sequence and calculates weight vector and base in user terminal code book Channel quality under the multiple combinations for the weight vector stood in the code book of end；

Uplink beam figuration is carried out using the base station end code book of reduction and the user equipment end code book of reduction Training.

(35) wave beam forming training methods of the according to (34), in addition to：To the base station end code of reduction Originally it is corrected.

(36) wave beam forming training methods of the according to (35), wherein, to the base station end code book of reduction The step of being corrected includes：

For each weight vector in the base station end code book of reduction, calculate cause the weight vector with The minimum horizontal angle of arrival of each base station end antenna response vector distance of down channel and vertical arrival Angle；

Obtain the base station end of up channel corresponding with the horizontal angle of arrival and vertical angle of arrival that are calculated Third antenna response vector；

Selection is sweared with the minimum weight of the distance of the third antenna response vector from base station end code book Amount, is used as the weight vector after correction.

(37) wave beam forming training methods of the according to (34), in addition to：To the user terminal code of reduction Originally it is corrected.

(38) wave beam forming training methods of the according to (34), wherein, to the user terminal code book of reduction The step of being corrected includes：

For each weight vector in the user terminal code book of reduction, calculate cause the weight vector with The minimum horizontal angle of arrival of each user equipment end antenna response vector distance of down channel and vertical Angle of arrival；

The user for obtaining up channel corresponding with the horizontal angle of arrival and vertical angle of arrival that are calculated sets The 4th antenna response vector at standby end；

The selection power minimum with the distance of the 4th antenna response vector from the code book of user equipment end Weight vector, is used as the weight vector after correction.

(39) one kind is used for the user equipment of FDD (FDD) millimetre-wave attenuator, including processor, Wherein described processor is configured as：

Receive the descending training sequence sent by base station according to base station end code book；

(40) one kind is used for the user equipment of FDD (FDD) millimetre-wave attenuator, including：

Receiving unit, for receiving the descending training sequence sent by base station according to base station end code book；

(41) a kind of communication systems of, including user equipment and the base as described in claim 101 or 150 Stand.

(42) a kind of communication systems of, including base station and the user as described in claim 301 or 350 set It is standby.

(43) one kind is used for the wave beam forming training method of FDD (FDD) millimetre-wave attenuator, including：

Second communication equipment sends training sequence according to the second equipment end code book to the first communication equipment；

Weight in first communication equipment received training sequence and the first communication equipment end code book of calculating Channel quality under the multiple combinations of weight vector in the code book of the second communication equipment of vector end；

It is right for each weight vector selection one in the first communication equipment end code book according to channel quality The channel quality answered, so as to form the first channel quality set；

It is right for each weight vector selection one in the second communication equipment end code book according to channel quality The channel quality answered, so as to form second channel quality set；

Select the channel quality of the first predetermined number from the first channel quality set, and according to first First communication equipment end code book of the corresponding weight vector generation reduction of channel quality of predetermined number；

Select the channel quality of the second predetermined number from second channel quality set, and according to second Second communication equipment end code book of the corresponding weight vector generation reduction of channel quality of predetermined number； And

Carried out using the first communication equipment end code book of reduction and the second communication equipment end code book of reduction Wave beam forming training for sending information from from the first communication equipment to the second communication equipment.

(44) one kind is used for the wave beam forming training method of FDD (FDD) millimetre-wave attenuator, including：

(45) method according to (44), in addition to：

So far, it is described in detail according to the wave beam forming training method of the present invention and for base The electronic equipment stood with user equipment.In order to avoid the design of the masking present invention, ability is not described Some details well known to domain.Those skilled in the art as described above, are apparent that completely How disclosed herein technical scheme is implemented.

Although some specific embodiments of the present invention are described in detail by example, But it should be appreciated by those skilled in the art, above example merely to illustrate, without It is to limit the scope of the present invention.It should be appreciated by those skilled in the art can not depart from In the case of scope and spirit of the present invention, above example is modified.The model of the present invention Enclose and be defined by the following claims.

Claims

1. a kind of electronic equipment for the first communication device being used in wireless communication system, including：

Memory, is configured as simulation code book of the storage for the first communication device, the simulation code This includes multigroup first configuration parameter of one group of phase shifter for the first communication device；And Process circuit, is configured as：

Signal transmission based on multigroup first configuration parameter and from secondary communication device, point Other the first channel to the secondary communication device to the first communication device carries out channel estimation,

The first configuration parameter group corresponding to the first predetermined condition person is met in selection channel estimation results Code book is intended with the submodule for generating reduction,

First communication device described in codebook configuration is intended to the secondary communication device based on the submodule Signal is transmitted, for the second channel to the first communication device to the secondary communication device Carry out channel estimation.

2. electronic equipment as claimed in claim 1, wherein each in multigroup first configuration parameter Group corresponds to a weight vector, and each weight vector is used to configure each in one group of phase shifter The phase value of individual phase shifter.

3. electronic equipment as claimed in claim 1, the process circuit is additionally configured to：Based on described Signal transmission frequencies between first communication device and the secondary communication device are intended the submodule of reduction The submodule that code book is corrected to be corrected intends code book, intends code book using the submodule of the correction and matches somebody with somebody The signal for putting the first communication device to the secondary communication device is transmitted.

4. electronic equipment as claimed in claim 1, the memory is additionally configured to storage for described The opposite end simulation code book of secondary communication device, the opposite end simulation code book is included to be led to for described second Multigroup second configuration parameter of one group of phase shifter of T unit, the process circuit is additionally configured to choosing Select to meet in channel estimation results and be used for the secondary communication device corresponding to the second predetermined condition person The second configuration parameter group, with generate for the secondary communication device reduction to Terminals Die intend Code book, wherein, the secondary communication device is based on described to first described in Terminals Die plan codebook configuration The signal of communicator to the secondary communication device is received.

5. electronic equipment as claimed in claim 4, the process circuit is additionally configured to：Based on described Signal transmission frequencies and described second between first communication device and the secondary communication device are led to The opposite end that to Terminals Die plan code book is corrected to be corrected of the antenna configuration of T unit to reduction Submodule intends code book, wherein, the secondary communication device intends code book using the correction to Terminals Die Configure and the signal of the first communication device to the secondary communication device is received.

6. electronic equipment as claimed in claim 4, the process circuit is additionally configured to：Used in generation In the secondary communication device reduction to Terminals Die intend code book after, generation include on described Terminals Die is intended the message of code book to notify the secondary communication device.

7. the electronic equipment as described in any one of claim 1 to 6, the process circuit also by with The feedback to the channel estimation results of the second channel based on the secondary communication device is set to, from One group is determined in multigroup first configuration parameter to configure the signal by the second channel Transmission, wherein, the feedback of the channel estimation results includes the correspondence in multigroup first configuration parameter The optimal corresponding channel estimation results of one group of first configuration parameter of channel estimation results.

8. electronic equipment as claimed in claim 1, wherein, the wireless communication system is FDD Communication system.

9. electronic equipment as claimed in claim 1, wherein, first predetermined condition is the channel The first optimal predetermined number channel quality of channel quality in quality estimation results.

10. electronic equipment as claimed in claim 4, wherein, second predetermined condition is the channel The second optimal predetermined number channel quality of channel quality in quality estimation results.

11. electronic equipment as claimed in claim 1, wherein, the signal is pilot signal.

12. electronic equipment as claimed in claim 7, wherein, the electronic device works are described first Communicator, the first communication device also includes one group of phase shifter, radio frequency link and multiple Antenna, wherein this group phase shifter is arranged between the radio frequency link and the multiple antenna, wherein, The process circuit of the electronic equipment intends organizing the phase of phase shifter described in codebook configuration based on the submodule, And send signal to the secondary communication device using the multiple antenna.

13. electronic equipment as claimed in claim 12, wherein, the first communication device is base station, First channel corresponds to up channel, and the second channel corresponds to down channel.

14. electronic equipment as claimed in claim 12, wherein, the first communication device sets for user Standby, first channel corresponds to down channel, and the second channel corresponds to up channel.

15. electronic equipment as claimed in claim 13, the process circuit of the electronic equipment is also configured To enter in the channel quality of the first channel to the secondary communication device to the first communication device Before row estimation, generate for configuring the signal from secondary communication device to the first communication device The control message of transmission, the control message includes the control parameter that signal is transmitted.

16. electronic equipment as claimed in claim 13, in addition to multiple radio frequency links, each of which are penetrated Frequency link is mutually coupled with one group of phase shifter, and the first communication device also includes and the multiple radio frequency The digital precode device of link coupling, the process circuit is additionally configured to be based on from multiple described The feedback generation digital precode matrix of the channel quality estimation result of secondary communication device, with toilet State digital precode device and digital precode is carried out to the data-signal for the plurality of secondary communication device.

17. a kind of electronic equipment for the secondary communication device being used in wireless communication system, including

Memory, is configured as simulation code book of the storage for the secondary communication device, the simulation code book Include multigroup second configuration parameter of one group of phase shifter for the secondary communication device；And

Process circuit, is configured as：

Based on multigroup second configuration parameter configuration from the secondary communication device to the first communication dress The signal transmission put, for the secondary communication device to the first of the first communication device The channel quality of channel estimated,

Obtained from the first communication device and intend code for the submodule of the reduction of the secondary communication device Originally, the submodule plan code book of the reduction is the first communication device based on to first channel Meet what the second configuration parameter group corresponding to predetermined condition person was generated in channel quality estimation result,

Submodule based on the reduction is intended signal of the codebook configuration from first communication device and received, and Perform and the channel quality of the first communication device to the second channel of the secondary communication device is entered Row estimation.

18. electronic equipment as claimed in claim 17, wherein every in multigroup second configuration parameter One group corresponds to a weight vector, and each weight vector is used to configure in one group of phase shifter The phase value of each phase shifter.

19. electronic equipment as claimed in claim 17, the process circuit is additionally configured to：From described First communication device is obtained intends code book for the submodule of the correction of the secondary communication device, and utilizes The submodule of the correction is intended signal of the codebook configuration from the first communication device and received, the school It is based on the letter between the first communication device and the secondary communication device that positive submodule, which intends code book, The antenna configuration of number transmission frequency and the secondary communication device intends code book to the submodule of the reduction Obtained from being corrected.

20. electronic equipment as claimed in claim 17, wherein the predetermined condition is the channel quality The optimal predetermined number channel quality of channel quality in estimated result.

21. electronic equipment as claimed in claim 19, wherein the process circuit is additionally configured to： The antenna configuration of the secondary communication device is sent to first communication device.

22. electronic equipment as claimed in claim 17, wherein the signal is pilot signal.

23. electronic equipment as claimed in claim 17, wherein process circuit work is described second Communicator, the secondary communication device also includes one group of phase shifter, radio frequency link and multiple Antenna, wherein this group phase shifter is arranged between the radio frequency link and the multiple antenna, wherein, The process circuit of the electronic equipment intends organizing the phase of phase shifter described in codebook configuration based on the submodule, And send signal to the first communication device using the multiple antenna.

24. electronic equipment as claimed in claim 23, wherein the secondary communication device is user equipment, First channel corresponds to up channel, and the second channel corresponds to down channel.

25. electronic equipment as claimed in claim 23, wherein the secondary communication device is base station, institute The first channel is stated corresponding to down channel, the second channel corresponds to up channel.

26. one kind is used for the wave beam forming training method of FDD (FDD) millimetre-wave attenuator, including：

Select the channel quality of the first predetermined number from the first channel quality set, and according to first The base station end code book of the corresponding weight vector generation reduction of channel quality of predetermined number；And

Down beam shaping training is carried out using the base station end code book of reduction.

27. wave beam forming training method according to claim 26, wherein, in user terminal code book The multiple combinations of weight vector and the weight vector in base station end code book include：

28. wave beam forming training method according to claim 26, wherein, the user terminal code book In weight vector and the multiple combinations of the weight vector in base station end code book include：

29. wave beam forming training method according to claim 28, wherein, the user terminal code book In weight vector and the multiple combinations of the weight vector in base station end code book include：Base station end code book In the combination with whole weight vectors in user terminal code book of one of weight vector, and user terminal The combination of one of weight vector in code book and whole weight vectors in base station end code book.

30. wave beam forming training method according to claim 29, wherein, according to base station end code book In one of weight vector and the channel obtained by the combination of whole weight vectors in user terminal code book Quality, selects to weigh with the whole in base station end code book in the weight vector in the user terminal code book The weight vector that weight vector is combined.

31. wave beam forming training method according to claim 26, wherein, according to channel quality A corresponding channel quality is selected for each weight vector in base station end code book, so as to form the It is the optimal letter of each weight vector selection in base station end code book in the step of one channel quality set Road quality.

32. wave beam forming training method according to claim 26, in addition to：

33. wave beam forming training method according to claim 32, wherein, it is according to channel quality Each weight vector in user terminal code book selects a corresponding channel quality, so as to form second It is each weight vector selection optimum channel in user terminal code book in the step of channel quality set Quality.

34. wave beam forming training method according to claim 32, in addition to：Carrying out down going wave Before the training of beam figuration, the user equipment end code book of reduction is sent to user equipment.

35. wave beam forming training method according to claim 32, in addition to：User equipment is to base Stand transmission antenna parameter.

36. wave beam forming training method according to claim 35, wherein, the antenna parameter bag Include the spacing of antenna type and/or antenna.

37. wave beam forming training method according to claim 35, wherein, base station is according to the day Line parameter calculates the antenna response vector of user equipment.

38. wave beam forming training method according to claim 26, in addition to：To the base station of reduction End code book is corrected.

39. the wave beam forming training method according to claim 38, wherein, to the base station end of reduction The step of code book is corrected includes：

40. wave beam forming training method according to claim 32, in addition to：To the user of reduction End code book is corrected.

41. wave beam forming training method according to claim 40, wherein, to the user terminal of reduction The step of code book is corrected includes：

42. the wave beam forming training method according to claim 39 or 41, wherein, pass through sampling Discretization is carried out to horizontal angle of arrival and vertical angle of arrival.

43. wave beam forming training method according to claim 42, wherein, horizontal angle of arrival is adopted Sampling point number is equal to the integral multiple of correspondence horizontal direction antenna number, the sampled point number of vertical angle of arrival Equal to the integral multiple of correspondence vertical direction antenna number.

44. one kind is used for the wave beam forming training method of FDD (FDD) millimetre-wave attenuator, including：

Uplink beam figuration training is carried out using the base station end code book of reduction.

45. one kind is used for the wave beam forming training method of FDD (FDD) millimetre-wave attenuator, including：

Uplink beam figuration training is carried out using the user equipment end code book of reduction.